netdev - Re: [PATCH 1/2] pcnet32: only allocate init

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 7 Mar 2007 19:22:28 +0000
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	"Michael K. Edwards" <medwards.linux@...il.com>
Cc:	Don Fry <pcnet32@...izon.net>, jgarzik@...ox.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] pcnet32: only allocate init_block dma consistent

On Wed, Mar 07, 2007 at 08:35:30AM -0800, Michael K. Edwards wrote:

> >Price question: why would this patch make a difference under VMware? :-)
> 
> Moving the struct pcnet32_private from the GFP_DMA32 init_block to the
> GFP_KERNEL netdev allocation may be a win even on systems where
> GFP_DMA32 is normally cached, because the private area will get read
> ahead into cache when the netdev is touched.

GFP_* flags have no influence on caching or prefetching.

  Ralf
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html